Erreur compilation LiquidCrystal_I2C

anthonn · May 13, 2026, 12:59am

Bonjour, je suis débutant sur Arduino. Je souhaiterais téléverser un programme récupéré sur le net. J'utilise ARDUINO IDE 2.3.8. J'ai installé les bibliothèques Keypad et LiquidCrystal_I2C (Frank de Brabander) via le gestionnaire bibliothèque de mon IDE. Mais un message d'erreur s'affiche à chaque fois !
J'ai navigué sur ce forum pour trouver la solution mais en vain. Mon chemin d'accès était initialement via ONEDRIVE. Il ne comporte pas de caractère non ASCII. Je l'ai mis sur mon perso D:/. Mais, le bug demeure... Auriez-vous des solutions SVP :)))Texte préformaté

Voici le programme;

// Viral Science www.viralsciencecreativity.com www.youtube.com/c/viralscience
// Arduino Airsoft Time Bomb

#include <Keypad.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3F, 16, 2);  //Change the HEX address

int Hours = 00;
int Minutes = 00;
int Seconds = 00;
int trycount = 0;
int keycount = 0;
int i = 0;

int redled = A2;
int yellowled = A1;
int greenled = A3;

int hourstenscode;
int hoursonescode;
int mintenscode;
int minonescode;
int sectenscode;
int seconescode;

long secMillis = 0;
long interval = 1000;

char password[4];
char entered[4];

const byte ROWS = 4;
const byte COLS = 3;
char keys[ROWS][COLS] = {
  { '1', '2', '3' },
  { '4', '5', '6' },
  { '7', '8', '9' },
  { '*', '0', '#' }
};
byte rowPins[ROWS] = { 8, 7, 6, 5 };  //7,2,3,5 for Black 4x3 keypad
byte colPins[COLS] = { 4, 3, 2 };     //6,8,4 for Black 4x3 Keypad

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup() {
  pinMode(redled, OUTPUT);
  pinMode(yellowled, OUTPUT);
  pinMode(greenled, OUTPUT);
  digitalWrite(redled, HIGH);
  digitalWrite(yellowled, HIGH);
  digitalWrite(greenled, HIGH);

  lcd.begin();
  lcd.backlight();
  Serial.begin(9600);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Bomb activated!");
  lcd.setCursor(0, 1);
  lcd.print("Enter Code:");
  while (keycount < 4) {
    lcd.setCursor(keycount + 12, 1);
    lcd.blink();
    char armcode = keypad.getKey();
    armcode == NO_KEY;
    if (armcode != NO_KEY) {
      if ((armcode != '*') && (armcode != '#')) {
        lcd.print(armcode);
        tone(9, 5000, 100);
        password[keycount] = armcode;
        keycount++;
      }
    }
  }

  if (keycount == 4) {
    delay(500);
    lcd.noBlink();
    lcd.clear();
    lcd.home();
    lcd.print("Disarm Code is: ");
    lcd.setCursor(6, 1);
    lcd.print(password[0]);
    lcd.print(password[1]);
    lcd.print(password[2]);
    lcd.print(password[3]);
    delay(3000);
    lcd.clear();
  }
  lcd.setCursor(0, 0);
  lcd.print("Timer: HH:MM:SS");
  lcd.setCursor(0, 1);
  lcd.print("SET:   :  :");
  keycount = 5;

  while (keycount == 5) {
    char hourstens = keypad.getKey();
    lcd.setCursor(5, 1);
    lcd.blink();
    if (hourstens >= '0' && hourstens <= '9') {
      hourstenscode = hourstens - '0';
      tone(9, 5000, 100);
      lcd.print(hourstens);
      keycount++;
    }
  }

  while (keycount == 6) {
    char hoursones = keypad.getKey();
    lcd.setCursor(6, 1);
    lcd.blink();
    if (hoursones >= '0' && hoursones <= '9') {
      hoursonescode = hoursones - '0';
      tone(9, 5000, 100);
      lcd.print(hoursones);
      keycount++;
    }
  }

  while (keycount == 7) {
    char mintens = keypad.getKey();
    lcd.setCursor(8, 1);
    lcd.blink();
    if (mintens >= '0' && mintens <= '9') {
      mintenscode = mintens - '0';
      tone(9, 5000, 100);
      lcd.print(mintens);
      keycount++;
    }
  }

  while (keycount == 8) {
    char minones = keypad.getKey();
    lcd.setCursor(9, 1);
    lcd.blink();
    if (minones >= '0' && minones <= '9') {
      minonescode = minones - '0';
      tone(9, 5000, 100);
      lcd.print(minones);
      keycount++;
    }
  }

  while (keycount == 9) {
    char sectens = keypad.getKey();
    lcd.setCursor(11, 1);
    lcd.blink();
    if (sectens >= '0' && sectens <= '9') {
      sectenscode = sectens - '0';
      tone(9, 5000, 100);
      lcd.print(sectens);
      keycount = 10;
    }
  }

  while (keycount == 10) {
    char secones = keypad.getKey();
    lcd.setCursor(12, 1);
    lcd.blink();
    if (secones >= '0' && secones <= '9') {
      seconescode = secones - '0';
      tone(9, 5000, 100);
      lcd.print(secones);
      keycount = 11;
    }
  }

  if (keycount == 11)
    ;
  {
    Hours = (hourstenscode * 10) + hoursonescode;
    Minutes = (mintenscode * 10) + minonescode;
    Seconds = (sectenscode * 10) + seconescode;
    delay(100);
    lcd.noBlink();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Timer set at:");
    if (Hours >= 10) {
      lcd.setCursor(7, 1);
      lcd.print(Hours);
    }
    if (Hours < 10) {
      lcd.setCursor(7, 1);
      lcd.write("0");
      lcd.setCursor(8, 1);
      lcd.print(Hours);
    }
    lcd.print(":");

    if (Minutes >= 10) {
      lcd.setCursor(10, 1);
      lcd.print(Minutes);
    }
    if (Minutes < 10) {
      lcd.setCursor(10, 1);
      lcd.write("0");
      lcd.setCursor(11, 1);
      lcd.print(Minutes);
    }
    lcd.print(":");

    if (Seconds >= 10) {
      lcd.setCursor(13, 1);
      lcd.print(Seconds);
    }

    if (Seconds < 10) {
      lcd.setCursor(13, 1);
      lcd.write("0");
      lcd.setCursor(14, 1);
      lcd.print(Seconds);
    }
    delay(3000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Press # to arm");
    delay(50);
    keycount = 12;
  }

  while (keycount == 12) {
    char armkey = keypad.getKey();

    if (armkey == '#') {
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      delay(50);
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      delay(50);
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      lcd.clear();
      lcd.print("Bomb Armed!");
      lcd.setCursor(0, 1);
      lcd.print("Countdown start");
      delay(3000);
      lcd.clear();
      keycount = 0;
    }
  }
}
void loop() {
  timer();
  char disarmcode = keypad.getKey();

  if (disarmcode == '*') {
    tone(9, 5000, 100);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Code: ");

    while (keycount < 4) {
      timer();

      char disarmcode = keypad.getKey();
      if (disarmcode == '#') {
        tone(9, 5000, 100);
        keycount = 0;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Code: ");
      } else if (disarmcode != NO_KEY) {
        lcd.setCursor(keycount + 7, 0);
        lcd.blink();
        lcd.print(disarmcode);
        entered[keycount] = disarmcode;
        keycount++;
        tone(9, 5000, 100);
        delay(100);
        lcd.noBlink();
        lcd.setCursor(keycount + 6, 0);
        lcd.print("*");
        lcd.setCursor(keycount + 7, 0);
        lcd.blink();
      }
    }

    if (keycount == 4) {
      if (entered[0] == password[0] && entered[1] == password[1] && entered[2] == password[2] && entered[3] == password[3]) {
        lcd.noBlink();
        lcd.clear();
        lcd.home();
        lcd.print("Bomb Defused!");
        lcd.setCursor(0, 1);
        lcd.print("Well Done!");
        keycount = 0;
        digitalWrite(greenled, LOW);
        delay(15000);
        lcd.clear();
        lcd.setCursor(0, 1);
        lcd.print("Reset the Bomb");
        delay(1000000);
      } else {
        lcd.noBlink();
        lcd.clear();
        lcd.home();
        lcd.print("Wrong Password!");
        trycount++;

        if (Hours > 0) {
          Hours = Hours / 2;
        }

        if (Minutes > 0) {
          Minutes = Minutes / 2;
        }
        if (Seconds > 0) {
          Seconds = Seconds / 2;
        }
        if (trycount == 2) {
          interval = interval / 10;
        }
        if (trycount == 3) {
          Minutes = Minutes - 59;
          Hours = Hours - 59;
          Seconds = Seconds - 59;
        }
        delay(1000);
        keycount = 0;
      }
    }
  }
}

void timer() {
  Serial.print(Seconds);
  Serial.println();

  if (Hours <= 0) {
    if (Minutes < 0) {
      lcd.noBlink();
      lcd.clear();
      lcd.home();
      lcd.print("The Bomb Has ");
      lcd.setCursor(0, 1);
      lcd.print("Exploded!");

      while (Minutes < 0) {
        digitalWrite(redled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(redled, HIGH);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(yellowled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(yellowled, HIGH);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(greenled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(greenled, HIGH);
        tone(9, 7000, 100);
        delay(100);
      }
    }
  }
  lcd.setCursor(0, 1);
  lcd.print("Timer:");

  if (Hours >= 10) {
    lcd.setCursor(7, 1);
    lcd.print(Hours);
  }
  if (Hours < 10) {
    lcd.setCursor(7, 1);
    lcd.write("0");
    lcd.setCursor(8, 1);
    lcd.print(Hours);
  }
  lcd.print(":");

  if (Minutes >= 10) {
    lcd.setCursor(10, 1);
    lcd.print(Minutes);
  }
  if (Minutes < 10) {
    lcd.setCursor(10, 1);
    lcd.write("0");
    lcd.setCursor(11, 1);
    lcd.print(Minutes);
  }
  lcd.print(":");

  if (Seconds >= 10) {
    lcd.setCursor(13, 1);
    lcd.print(Seconds);
  }

  if (Seconds < 10) {
    lcd.setCursor(13, 1);
    lcd.write("0");
    lcd.setCursor(14, 1);
    lcd.print(Seconds);
  }

  if (Hours < 0) {
    Hours = 0;
  }

  if (Minutes < 0) {
    Hours--;
    Minutes = 59;
  }

  if (Seconds < 1) {
    Minutes--;
    Seconds = 59;
  }

  if (Seconds > 0) {
    unsigned long currentMillis = millis();

    if (currentMillis - secMillis > interval) {
      tone(9, 7000, 50);
      secMillis = currentMillis;
      Seconds--;
      digitalWrite(yellowled, LOW);
      delay(10);
      digitalWrite(yellowled, HIGH);
      delay(10);
    }
  }
}

Et le message d'erreur;

D:\Documents OS Perso (D)\Arduino\Arduino_Airsoft_BombV1\Arduino_Airsoft_BombV1.ino: In function 'void setup()':
D:\Documents OS Perso (D)\Arduino\Arduino_Airsoft_BombV1\Arduino_Airsoft_BombV1.ino:54:13: error: no matching function for call to 'LiquidCrystal_I2C::begin()'
   lcd.begin();
             ^
In file included from D:\Documents OS Perso (D)\Arduino\Arduino_Airsoft_BombV1\Arduino_Airsoft_BombV1.ino:6:0:
d:\Documents OS Perso (D)\libraries\LiquidCrystal_I2C/LiquidCrystal_I2C.h:58:8: note: candidate: void LiquidCrystal_I2C::begin(uint8_t, uint8_t, uint8_t)
   void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS );
        ^~~~~
d:\Documents OS Perso (D)\libraries\LiquidCrystal_I2C/LiquidCrystal_I2C.h:58:8: note:   candidate expects 3 arguments, 0 provided
exit status 1

Compilation error: no matching function for call to 'LiquidCrystal_I2C::begin()

Merci d'avance pour votre aide !

gilshultz · May 13, 2026, 1:32am

Welcome
Sorry, this is the English-speaking forum. You might have better luck on the French forum.

I am not familiar with IDE versions 2.0 and above. I took the liberty of translating your question to save others the work hopefully they can answer your question.

Hello, I am a beginner on Arduino. I would like to upload a program retrieved from the internet. I'm using ARDUINO IDE 2.3.8. I installed the Keypad and LiquidCrystal_I2C (Frank de Brabander) libraries via my IDE's library manager. But an error message appears every time! I browsed this forum to find the solution but to no avail. My path was initially via ONEDRIVE. It does not have a non-ASCII character. I put it on my character D:/. But, the bug remains... Do you have any solutions please:)))Preformatted text

sterretje · May 13, 2026, 4:33am

Veuillez utiliser la langue anglaise dans les sections anglaises du forum. Votre sujet a été déplacé vers la section française du forum.

jpbbricole · May 13, 2026, 8:11am

Bonjour anthonn

Si ça peut t'aider

Cordialement
jpbbricole

anthonn · May 20, 2026, 5:37pm

Bonjour à tous !
Merci bcp jpbbricole pour ta réponse. J'ai pris un peu de temps à répondre car le boulot m'a accaparé
J'ai modifié mon code avec tes recommandations. J'ai réussi à le "vérifier" et à le "téléverser". Bon ensuite, j'ai quelques soucis de branchement et d'affichage sur le LiquidCrystal_I2C mais grâce aux FAQ du forum et un peu de recherches, j'ai enfin réussi :)))
Cependant lors du décompte du timer, les "0" s'affichent à la place avec le symbole "y" (voir les 2 photos en pièces jointes). Je ne vois pas d'où peut provenir le problème. Aurais-tu une idée STP? Je te remercie d'avance,
Anthonn

Voici le code:

// Viral Science www.viralsciencecreativity.com www.youtube.com/c/viralscience
// Arduino Airsoft Time Bomb

#include <Keypad.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);  //Change the HEX address

int Hours = 00;
int Minutes = 00;
int Seconds = 00;
int trycount = 0;
int keycount = 0;
int i = 0;

int redled = A2;
int yellowled = A1;
int greenled = A3;

int hourstenscode;
int hoursonescode;
int mintenscode;
int minonescode;
int sectenscode;
int seconescode;

long secMillis = 0;
long interval = 1000;

char password[4];
char entered[4];

const byte ROWS = 4;
const byte COLS = 3;
char keys[ROWS][COLS] = {
  { '1', '2', '3' },
  { '4', '5', '6' },
  { '7', '8', '9' },
  { '*', '0', '#' }
};
byte rowPins[ROWS] = { 8, 7, 6, 5 };  //7,2,3,5 for Black 4x3 keypad
byte colPins[COLS] = { 4, 3, 2 };     //6,8,4 for Black 4x3 Keypad

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup() {
  pinMode(redled, OUTPUT);
  pinMode(yellowled, OUTPUT);
  pinMode(greenled, OUTPUT);
  digitalWrite(redled, HIGH);
  digitalWrite(yellowled, HIGH);
  digitalWrite(greenled, HIGH);

  lcd.init();
  lcd.backlight();
  Serial.begin(9600);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Bombe ACTIVE!");
  lcd.setCursor(0, 1);
  lcd.print("ENTREZ Code:");
  while (keycount < 4) {
    lcd.setCursor(keycount + 12, 1);
    lcd.blink();
    char armcode = keypad.getKey();
    armcode == NO_KEY;
    if (armcode != NO_KEY) {
      if ((armcode != '*') && (armcode != '#')) {
        lcd.print(armcode);
        tone(9, 5000, 100);
        password[keycount] = armcode;
        keycount++;
      }
    }
  }

  if (keycount == 4) {
    delay(500);
    lcd.noBlink();
    lcd.clear();
    lcd.home();
    lcd.print("Code DESACTIV is: ");
    lcd.setCursor(6, 1);
    lcd.print(password[0]);
    lcd.print(password[1]);
    lcd.print(password[2]);
    lcd.print(password[3]);
    delay(3000);
    lcd.clear();
  }
  lcd.setCursor(0, 0);
  lcd.print("Timer: HH:MM:SS");
  lcd.setCursor(0, 1);
  lcd.print("SET:   :  :");
  keycount = 5;

  while (keycount == 5) {
    char hourstens = keypad.getKey();
    lcd.setCursor(5, 1);
    lcd.blink();
    if (hourstens >= '0' && hourstens <= '9') {
      hourstenscode = hourstens - '0';
      tone(9, 5000, 100);
      lcd.print(hourstens);
      keycount++;
    }
  }

  while (keycount == 6) {
    char hoursones = keypad.getKey();
    lcd.setCursor(6, 1);
    lcd.blink();
    if (hoursones >= '0' && hoursones <= '9') {
      hoursonescode = hoursones - '0';
      tone(9, 5000, 100);
      lcd.print(hoursones);
      keycount++;
    }
  }

  while (keycount == 7) {
    char mintens = keypad.getKey();
    lcd.setCursor(8, 1);
    lcd.blink();
    if (mintens >= '0' && mintens <= '9') {
      mintenscode = mintens - '0';
      tone(9, 5000, 100);
      lcd.print(mintens);
      keycount++;
    }
  }

  while (keycount == 8) {
    char minones = keypad.getKey();
    lcd.setCursor(9, 1);
    lcd.blink();
    if (minones >= '0' && minones <= '9') {
      minonescode = minones - '0';
      tone(9, 5000, 100);
      lcd.print(minones);
      keycount++;
    }
  }

  while (keycount == 9) {
    char sectens = keypad.getKey();
    lcd.setCursor(11, 1);
    lcd.blink();
    if (sectens >= '0' && sectens <= '9') {
      sectenscode = sectens - '0';
      tone(9, 5000, 100);
      lcd.print(sectens);
      keycount = 10;
    }
  }

  while (keycount == 10) {
    char secones = keypad.getKey();
    lcd.setCursor(12, 1);
    lcd.blink();
    if (secones >= '0' && secones <= '9') {
      seconescode = secones - '0';
      tone(9, 5000, 100);
      lcd.print(secones);
      keycount = 11;
    }
  }

  if (keycount == 11)
    ;
  {
    Hours = (hourstenscode * 10) + hoursonescode;
    Minutes = (mintenscode * 10) + minonescode;
    Seconds = (sectenscode * 10) + seconescode;
    delay(100);
    lcd.noBlink();
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Timer SELECT a:");
    if (Hours >= 10) {
      lcd.setCursor(7, 1);
      lcd.print(Hours);
    }
    if (Hours < 10) {
      lcd.setCursor(7, 1);
      lcd.write("0");
      lcd.setCursor(8, 1);
      lcd.print(Hours);
    }
    lcd.print(":");

    if (Minutes >= 10) {
      lcd.setCursor(10, 1);
      lcd.print(Minutes);
    }
    if (Minutes < 10) {
      lcd.setCursor(10, 1);
      lcd.write("0");
      lcd.setCursor(11, 1);
      lcd.print(Minutes);
    }
    lcd.print(":");

    if (Seconds >= 10) {
      lcd.setCursor(13, 1);
      lcd.print(Seconds);
    }

    if (Seconds < 10) {
      lcd.setCursor(13, 1);
      lcd.write("0");
      lcd.setCursor(14, 1);
      lcd.print(Seconds);
    }
    delay(3000);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("PRESSEZ # pour");
    lcd.setCursor(0, 1);
    lcd.print("active Bombe!");
    delay(50);
    keycount = 12;
  }

  while (keycount == 12) {
    char armkey = keypad.getKey();

    if (armkey == '#') {
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      delay(50);
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      delay(50);
      tone(9, 5000, 100);
      delay(50);
      tone(9, 0, 100);
      lcd.clear();
      lcd.print("Bombe ACTIVE!");
      lcd.setCursor(0, 1);
      lcd.print("DECOMPTE Timer");
      delay(3000);
      lcd.clear();
      keycount = 0;
    }
  }
}
void loop() {
  timer();
  char disarmcode = keypad.getKey();

  if (disarmcode == '*') {
    tone(9, 5000, 100);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Code: ");

    while (keycount < 4) {
      timer();

      char disarmcode = keypad.getKey();
      if (disarmcode == '#') {
        tone(9, 5000, 100);
        keycount = 0;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Code: ");
      } else if (disarmcode != NO_KEY) {
        lcd.setCursor(keycount + 7, 0);
        lcd.blink();
        lcd.print(disarmcode);
        entered[keycount] = disarmcode;
        keycount++;
        tone(9, 5000, 100);
        delay(100);
        lcd.noBlink();
        lcd.setCursor(keycount + 6, 0);
        lcd.print("*");
        lcd.setCursor(keycount + 7, 0);
        lcd.blink();
      }
    }

    if (keycount == 4) {
      if (entered[0] == password[0] && entered[1] == password[1] && entered[2] == password[2] && entered[3] == password[3]) {
        lcd.noBlink();
        lcd.clear();
        lcd.home();
        lcd.print("Bombe DESACTIVE!");
        lcd.setCursor(0, 1);
        lcd.print("BRAVO!");
        keycount = 0;
        digitalWrite(greenled, LOW);
        delay(15000);
        lcd.clear();
        lcd.setCursor(0, 1);
        lcd.print("REACTIVEZ Bombe");
        delay(1000000);
      } else {
        lcd.noBlink();
        lcd.clear();
        lcd.home();
        lcd.print("Code Secret FAUX!");
        trycount++;

        if (Hours > 0) {
          Hours = Hours / 2;
        }

        if (Minutes > 0) {
          Minutes = Minutes / 2;
        }
        if (Seconds > 0) {
          Seconds = Seconds / 2;
        }
        if (trycount == 2) {
          interval = interval / 10;
        }
        if (trycount == 3) {
          Minutes = Minutes - 59;
          Hours = Hours - 59;
          Seconds = Seconds - 59;
        }
        delay(1000);
        keycount = 0;
      }
    }
  }
}

void timer() {
  Serial.print(Seconds);
  Serial.println();

  if (Hours <= 0) {
    if (Minutes < 0) {
      lcd.noBlink();
      lcd.clear();
      lcd.home();
      lcd.print("La Bombe a");
      lcd.setCursor(0, 1);
      lcd.print("Explosee!");

      while (Minutes < 0) {
        digitalWrite(redled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(redled, HIGH);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(yellowled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(yellowled, HIGH);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(greenled, LOW);
        tone(9, 7000, 100);
        delay(100);
        digitalWrite(greenled, HIGH);
        tone(9, 7000, 100);
        delay(100);
      }
    }
  }
  lcd.setCursor(0, 1);
  lcd.print("Timer:");

  if (Hours >= 10) {
    lcd.setCursor(7, 1);
    lcd.print(Hours);
  }
  if (Hours < 10) {
    lcd.setCursor(7, 1);
    lcd.write("0");
    lcd.setCursor(8, 1);
    lcd.print(Hours);
  }
  lcd.print(":");

  if (Minutes >= 10) {
    lcd.setCursor(10, 1);
    lcd.print(Minutes);
  }
  if (Minutes < 10) {
    lcd.setCursor(10, 1);
    lcd.write("0");
    lcd.setCursor(11, 1);
    lcd.print(Minutes);
  }
  lcd.print(":");

  if (Seconds >= 10) {
    lcd.setCursor(13, 1);
    lcd.print(Seconds);
  }

  if (Seconds < 10) {
    lcd.setCursor(13, 1);
    lcd.write("0");
    lcd.setCursor(14, 1);
    lcd.print(Seconds);
  }

  if (Hours < 0) {
    Hours = 0;
  }

  if (Minutes < 0) {
    Hours--;
    Minutes = 59;
  }

  if (Seconds < 1) {
    Minutes--;
    Seconds = 59;
  }

  if (Seconds > 0) {
    unsigned long currentMillis = millis();

    if (currentMillis - secMillis > interval) {
      tone(9, 7000, 50);
      secMillis = currentMillis;
      Seconds--;
      digitalWrite(yellowled, LOW);
      delay(10);
      digitalWrite(yellowled, HIGH);
      delay(10);
    }
  }
}

jpbbricole · May 20, 2026, 8:19pm

Bonjour anthonn

Essaies de remplacer tout les lcd.write par des lcd.print

Cordialement
jpbbricole

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